Figure 2

Magneto-optical rotation versus the probe field detuning for cold atoms KD = 0 (a), (c) and thermal atom \(kD = 50 \gamma\) (b), (d) w.r.t relative phase. Other parameters are kept constant to be \(\Omega _{1}=2.5, \Omega _{k}=2, p=0.9\), \(\Delta _{B}= 10\gamma , \Delta _{c}=0, \Delta _{1}=0\) and \(\alpha =190 \gamma\).